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Risk: Relatively Low

Jasper County, SC Environment & Hazard Risk

Relatively Low natural hazard risk, led by hurricane. 480 storm events since 1996.

Expected yearly loss
$28.81M
Relatively Low nationally
Storm events since 1996
480
Most often thunderstorm wind
Flood insurance policies
1,831
17.8% of homes
Hurricanes nearby
7
28 tropical storms or stronger since 1871

Natural hazard risk

FEMA National Risk Index, December 2025

Overall risk

Relatively Low

Score 78.6 of 100

Social vulnerability

Relatively High

Score 76.8 of 100

Community resilience

Relatively Low

Score 21.0 of 100

Community resilience runs the other way: a higher rating means a community can recover faster.

Building value exposed: $5.05B · Agriculture value exposed: $17.26M · Risk-adjusted yearly loss: $41.16M

Risk by hazard

  • HurricaneRelatively High$21.53M/yr expected annual loss, about once every 3 years
  • EarthquakeRelatively Low$1.59M/yr expected annual loss, about once every 307 years
  • WildfireRelatively Low$223K/yr expected annual loss, about once every 733 years
  • Heat waveRelatively Low$715K/yr expected annual loss, about 9.6 events a year
  • Coastal floodingRelatively Low$301K/yr expected annual loss, about 3.6 events a year
  • LightningRelatively Low$197K/yr expected annual loss, about 66 events a year
  • DroughtRelatively Low$86.98K/yr expected annual loss, about 25 events a year
  • TornadoRelatively Low$517K/yr expected annual loss, about once every 3 years
  • HailVery Low$95.88K/yr expected annual loss, about 2.4 events a year
  • Ice stormRelatively Low$25.68K/yr expected annual loss, about once every 2 years
  • Cold waveRelatively Low$322K/yr expected annual loss, about once every 2 years
  • Strong windRelatively Low$217K/yr expected annual loss, about 1.8 events a year
  • Winter weatherVery Low$13.05K/yr expected annual loss, about once every 1 year
  • LandslideVery Low$10/yr expected annual loss, about once every 9 years

Bars show the national percentile score (0 to 100) for each hazard. Dollar figures are expected annual losses to buildings, people and crops. Not rated here: avalanche, riverine flooding, tsunami, volcanic activity.

Flood risk and insurance

National Flood Insurance Program and FEMA flood maps

Check the flood zone for an address

Homes with flood insurance
1,831 of 10,297 (17.8%)
Homes in high-risk flood zones
1,153
Insured in high-risk zones
696 (60%)
Flood claims since 1978
113
Claims paid since 1978
$2.6M

Flood claims paid per year

Flood claims paid per year in Jasper County
  • Hurricane Matthew$1.15M · 33 claims
  • Hurricane Irma$467K · 20 claims
  • Hurricane Debby$413K · 6 claims
  • Flooding$46.62K · 5 claims
  • Hurricane Helene$15.23K · 7 claims
  • Hurricane Michael$7,943 · 1 claim

Storm history

Since 1996: 480 events, 0 deaths, $954K in damage

  • Thunderstorm Wind401
  • Hail42
  • Flash Flood21
  • Tornado8
  • Funnel Cloud3
  • Lightning3
  • Heavy Rain1
  • Excessive Heat1

Events per year

Storm events per year in Jasper County
18
8
19
9
31
36
23
19
39
40
21
12
25
23
5
13
17
9
14
14

10 tornadoes on record (EF0 1, EF1 1, F0 3, F1 5).

Most damaging storms

Since 1996, ranked by deaths, injuries and damage

  • Thunderstorm Wind50 kt wind01/03/2006

    Switzerland, Jasper County

    2 injured, $5,000 damage

    What happened

    Thunderstorm winds knocked down several trees just west of Switzerland. Also, a large limb broke off a tree and landed on a car in Ridgeland. Two occupants in the car received minor cuts and bruises.

  • Lightning08/05/2016

    Grahamville, Jasper County

    2 injured

    What happened

    The Jasper County 911 Call Center reported 2 pedestrians injured by lightning in Ridgeland.

  • TornadoF1, 2 mi path, 100 yd wide09/06/2004

    Hardeeville, Jasper County

    1 injured

    What happened

    A tornado knocked down limbs and trees, one of which fell on a mobile home causing 1 injury.

  • TornadoEF1, 4.11 mi path, 525 yd wide06/11/2012

    Switzerland, Jasper County

    $400K damage

    What happened

    A National Weather Service damage survey team evaluated damage that occurred with a severe thunderstorm that moved through portions of central Jasper County Monday afternoon. The team found considerable damage to trees south of Ridgeland with a damage pattern consistent with a tornado.||The tornado touched down just west of Jasper Road between the communities of Okatie and Switzerland and moved rapidly east-northeast before lifting near the intersection of South Carolina Highway 462 and Snake road. The worst damage occurred between Jasper Road and Riley Field Road where the team estimated between 300 and 500 medium to large-size trees were either snapped or uprooted. Some debarking of trees was also noted. This degree of|tree damage was consistent with an ef-1 tornado on the enhanced Fujita scale with winds estimated to be between 85 and 95 mph.

  • Flash Flood08/06/2024

    Gillisonville, Jasper County

    $100K damage

Latest storm reports

Newest first

  • Excessive Heat07/30/2026

    Inland Jasper

  • Thunderstorm Wind45 kt wind07/25/2026

    Pineland, Jasper County

    $5,000 damage

  • Thunderstorm Wind40 kt wind07/13/2026

    Hardeeville, Jasper County

    $5,000 damage

  • Thunderstorm Wind50 kt wind07/13/2026

    Pineland, Jasper County

  • Thunderstorm Wind50 kt wind07/13/2026

    Pineland, Jasper County

  • Thunderstorm Wind45 kt wind07/13/2026

    Grays, Jasper County

    $5,000 damage

  • Thunderstorm Wind50 kt wind06/18/2026

    Grahamville, Jasper County

  • Thunderstorm Wind50 kt wind06/18/2026

    Robertville, Jasper County

Hurricanes and tropical storms

Storms whose track crossed Jasper County, with the wind when it passed

Drinking water

3 community water systems serve about 2,879 people. Violations since 2021.

None of the systems serving this county had a health-based violation in this period.

Largest systems by population served. Monitoring and reporting violations mean required tests or notices were late or missing, not that the water was unsafe.

Climate

1991-2020 normals at Beaufort Mcas, 18 mi from the county center

Summer highs peak around 92°F in Jul and winter lows bottom out near 40°F in Jan. About 45.0 inches of rain falls in a typical year.

MonthHighLowRain
Jan60°F40°F2.90 in
Feb64°F43°F2.91 in
Mar70°F49°F3.11 in
Apr77°F56°F3.06 in
May84°F64°F2.50 in
Jun89°F71°F4.99 in
Jul92°F75°F5.57 in
Aug90°F74°F6.50 in
Sep86°F70°F4.03 in
Oct78°F59°F3.77 in
Nov69°F48°F2.51 in
Dec63°F43°F3.17 in
Year67°F average45.0 in

Pollution sites

0 Superfund sites and 3 toxic release facilities in Jasper County

Superfund sites

None in this county.

Toxic release facilities

Total: 79,183 lbs in 2024, 78,653 lbs to air.

Superfund sitesToxic release facilitiesEPA inspections and enforcementAir toxics cancer risk8 historic places

Frequently asked questions

How risky is Jasper County for natural disasters?
FEMA rates Jasper County relatively low for overall natural hazard risk, with expected losses of $28.81M a year. The highest-rated hazards are hurricane (relatively high), earthquake (relatively low), wildfire (relatively low).
What storms are most common in Jasper County?
Since 1996, NOAA recorded 480 storm events affecting Jasper County, most often thunderstorm wind (401), hail (42), flash flood (21).
How many tornadoes have hit Jasper County?
10 tornadoes have been recorded in Jasper County since 1950.
How many homes in Jasper County have flood insurance?
1,831 residential flood insurance policies are in force in Jasper County, covering about 17.8% of homes. The program has paid $2.6M on 113 claims here since 1978.
What is the weather like in Jasper County?
At Beaufort Mcas, average highs reach 92°F in Jul and lows fall to 40°F in Jan, with 45.0 inches of rain a year (1991-2020 normals).

Source: FEMA (National Risk Index, NFIP), NOAA (Storm Events, HURDAT2, Climate Normals), EPA · Last updated 08/01/2026 · Storm counts include events in forecast zones that touch the county. This product uses the FEMA OpenFEMA API, but is not endorsed by FEMA.